1. The main purpose of Barium sulfate precipitated is used in paints and coatings, the domestic paint industry has gained rapid development, the global paint coating increased by 3.9% in 2014, sales reached 43.38 million tons, the sales of architectural coatings is 21.69 million tons, 50% of the total industry sales, industrial paint sales of 12.5802 million tons, 29% of the total industry sales, Barium sulfate is one of the essential raw materials in coatings, used as filling material which can reduce the cost of coating production, and filled with precipitated barium sulfate, production performance is stable, can increase the hardness, wear resistance, sunlight resistance, can replace some parts of titanium dioxide.

high solid coatings

Excellent size distribution (0.7μm), can improve the gloss and reduce VOC and the cost of production.

Powder coatings

The crystal structure makes it a good smoothing agent, and can enhance the flat in the coating.With a small oil absorption, high gloss, good covering power, good weather resistance, and low particle size, etc.

water based coatings

Due to the chemical inertness and solubility, it also use in water-based coating, especially in the electrophoresis paint.

conductive coatings

Special inorganic processes, and other useful properties remain the same, and through the inorganic semiconductor, given the conductive properties via the coating.

automobile coatings

Barium sulfate can make the pigment steady, prevent flocculation, wear, and has excellent weather resistance and transparency. Used to increase the solids metallic paint, and won't cause color changes;Can also influence or control the flow leveling of sheet metal.

Typical technical index( Standard: GB/T 2899-2008)

Index

Unit

superior

First

Qualified

Cotent of BaSo4

%≥

98.5

98

98

105°C volatile

%≤

0.1

0.2

0.2

Water solubles

%≤

0.15

0.2

0.25

Fe

%≤

0.001

0.001

0.001

Whiteness

%≥

97

96

96

Oil absorption

g/100g

10-20

10-20

10-30

PH (100 g/L suspension)

6.5-7.5

6.5-8.5

6.5-8.5

Fineness (45μmtest sieve sieve residue)

%≤

0.1

0.15

0.2

2. Liangjiang brand-precipitated production process

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